Fertilizing peach tree tips grows rapidly and the fruit development period is short, so fertilization should be timely and reasonable. Fertilization in spring should not exceed the end of February, early application is better. The types of fertilizers are ammonium carbonate, phosphate fertilizer, potassium fertilizer and organic fertilizer. Peach trees with a yield of 35 to 50 kilograms of fruit each plant 40 kilograms of cooked human and animal manure, 0.25 kilogram of urea, 0.15 kilogram of superphosphate, and 0.4 kilogram of potassium chloride. Fertilization method: Under the canopy, near the root distribution area, dig 2 to 3 fertilization pits, mix organic fertilizer with nitrogen, phosphorus, and potassium fertilizers and apply it, and cover the soil after application. In case of drought and rain before sprout, light dung water should be irrigated for drought resistance and drainage and stain prevention.
Pest and disease control Before the flower buds sprout in March, the control of pests and diseases cannot be relaxed. In this period, there are mainly gluing disease, small leaf disease, scale insects, and peach perforation. Spray the sulphur mixture before germination, and spray two or three times of fluoric acid (or 1500 times the net fruit net) + Beitianda organic silicon mixed liquid (interval of one week) after the flowering and before the bagging, which can effectively control the perforation The occurrence of disease; spraying Albit plant growth estrogen can promote budding and prevent freezing damage in the cold spring.
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Urinalysis test strips refer to test strips that test for bilirubin, urobilinogen, ketone bodies, ascorbic acid, glucose, protein (albumin), blood cells, PH, etc. in urine.
Detection principle
1. pH: The pH value in the range of 5-9 is measured by the pH indicator, and the pH value of the fresh urine of a normal person is between 5-7.
2. Nitrite: The reaction is based on the reduction of nitrate to nitrite by Gram-positive bacteria in the urine. The nitrite reacts with p-aminobenzenesulfonic acid to form diazonium compounds, which are then combined with N-(1-naphthalene) )-3 aminopropanesulfonate combined with a pink color.
3. Glucose: According to the reaction principle of glucose oxidase, glucose oxidase specifically oxidizes glucose to generate glucuronic acid and hydrogen peroxide. Under the action of hydrogen peroxide, hydrogen peroxide oxidizes the indicator and turns color. .
Classification
Urinalysis test strips are divided into visual series and machine series. The visual inspection series is divided into several models according to different inspection items; the machine inspection series is divided into several models according to different applicable instruments.
1. Classification by measurement method
1) Visual inspection series
When observing the result, compare the color with the standard color code within the time specified on the color code, judge and read the result.
2) Machine test series.
For instrument operation, refer to the instruction manual of the Urine Analyzer used.
2. According to the number of measurement items
There are single-item, 2-item, 4-item and multiple test strips. Currently, 10-item or 11-item multiple test strips are most commonly used in hospitals.
3. Classification by structure
Urinalysis test strips with single-layer membrane structure and multi-layer membrane structure.
Urine Reagent Strips,Urine Test Strip,Urine Sugar Strip Test,Visual Urine Analysis Strips
Jilin Sinoscience Technology Co. LTD , https://www.contoryinstruments.com